Relocate lambda heater on Evo 89

[XSESIV]

I have the Evo 89 PnP M800 and would like to relocate the lambda heater from AUX2 to INJ7 so I can use AUX2 for DBW idle control. Currently Link 18 is closed and I'm using internal lambda 2 with a NTK.

It seems there must be an internal link from AUX2 to the internal lambda 2 header so it's not as easy as relocating pins. Will opening Link 18 solve my problem? I don't fully understand how Link 18 works.

I'm aware INJ7 may not have the current capacity for lambda heating, but I understand this may only be an issue when free air calibrating which can be worked around.

[YuriK]

Cutting Link 18 will disconnect AUX2 from the external connector but AUX2 is always connected to Lambda 2 connector on the circuit board.

Regards!